LD49150PT08R STMicroelectronics

LD49150 1.5 A ultra low-dropout voltage regulator Datasheet - production data Applications Graphics processors PC add-in cards Microprocessor core voltage supply Low voltage digital ICs High efficiency linear power supplies PPAK DFN6 (3x3 mm) SMPS post regulators Description Features The LD49150 is a high-bandwidth, low-dropout, Input voltage range: 1.5 A voltage regulator, ideal for powering core voltages of low power microprocessors. The V = 1.4 V to 5.5 V I LD49150 implements a dual supply configuration, V = 3 V to 6 V BIAS which guarantees a very low output impedance Stable with ceramic capacitors and a very fast transient response. The LD49150 1.5% initial tolerance requires a bias input supply and a main input supply, allowing ultra-low input voltages on the Maximum dropout voltage (V - V ) 200 mV I O main supply rail. The input supply operates from over the operating temperature range 1.4 V to 5.5 V and the bias supply requires Adjustable output voltage starting from 0.8 V between 3 V and 6 V to work properly. The Fast transient response (up to 10 MHz LD49150 offers fixed output voltages from 0.8 V to bandwidth) 1.8 V and adjustable output voltages starting from 0.8 V. The LD49150 requires a minimum output Excellent line and load regulation capacitance for stability, and works optimally with specifications small ceramic capacitors. Logic-controlled shutdown option Thermal shutdown and current limit protection Junction temperature range: - 25 C to 125 C Table 1. Device summary Order codes Output voltages (1) PPAK (tape and reel) DFN6 (tape and reel) LD49150PT08R Adjustable from 0.8 V LD49150PT10R LD49150PU10R 1.0 V LD49150PT12R LD49150PU12R 1.2 V 1. Available on request. May 2014 DocID13446 Rev 4 1/24 This is information on a product in full production. www.st.comContents LD49150 Contents 1 Typical application circuits . 3 2 Alternative application circuits 4 3 Pin configuration . 5 4 Diagram . 6 5 Maximum ratings 7 6 Electrical characteristics . 8 7 Typical characteristics . 9 8 Application hints . 12 8.1 Input supply voltage (VIN) 12 8.2 Bias supply voltage (VBIAS) 12 8.3 External capacitors 12 8.4 Output capacitor 12 8.5 Minimum load current 12 8.6 Power sequencing recommendations . 13 8.7 Power dissipation/heatsinking . 13 8.8 PPAK package heatsinking . 14 8.9 Adjustable regulator design . 14 8.10 Enable . 15 9 Package mechanical data 16 10 Packaging mechanical data 21 11 Revision history . 23 2/24 DocID13446 Rev 4